Read: Cool Planet: 7 simple ideas to help solve global warming

This excerpt from “Seven Wonders for a Cool Planet: Everyday Things to Help Solve Global Warming,” by Eric Sorensen and the staff of Sightline Institute, published by Sierra Club Books, is an ode to seven everyday devices that are friends of the climate (and your pocketbook, neighbors, health and children). More Subversively, Seven Wonders is a way to reimagine the global-warming problem, starting with a few mostly low-tech tools and notions.